The interactive roles of temperature, nutrients, and zooplankton grazing in controlling the winter-spring phytoplankton bloom in a temperate, coastal ecosystem, Long Island Sound

George, Jennifer; Lonsdale, D; Merlo, Lucas R.; Gobler, Christopher J.

doi:10.1002/lno.10020

Cited by 45 publications

(32 citation statements)

References 47 publications

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“…Indeed, long-standing controversy exist with regard to the most important factors affecting cyanobacterial bloom dynamics, as evidenced by the theories of nutrient dominance (Brookes and Carey 2011;Stich and Brinker 2010;Wagner and Adrian 2009), climate or meteorological dominance (Qin et al 2010;Jöhnk et al 2008;Zhang et al 2012), and their combined effects (George et al 2015;Gkelis et al 2014;Liu et al 2011;O'Neil et al 2012;Paerl and Paul 2012). In the present study, both meteorological factors and nutrient levels had important roles in controlling cyanobacterial bloom dynamics, particularly according to the results of interannual analysis (temperature and TP).…”

Section: Discussionmentioning

confidence: 48%

The relationships of meteorological factors and nutrient levels with phytoplankton biomass in a shallow eutrophic lake dominated by cyanobacteria, Lake Dianchi from 1991 to 2013

Zhou

Zhang

Lin

et al. 2016

Environ Sci Pollut Res

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Long-term interannual and monthly (1999)(2000)(2001)(2002)(2003)(2004)(2005)(2006)(2007)(2008)(2009)(2010)(2011)(2012)(2013) data were analyzed to elucidate the effects of meteorological factors and nutrient levels on phytoplankton biomass in the cyanobacteria-dominated Waihai basin of Lake Dianchi. The interannual ln(chl. a) exhibited positive correlations with the mean air temperature, mean minimum air temperature, and mean maximum air temperature; in addition, a positive relationship between Δln(chl. a) and ΔTP was observed throughout the period. Additionally, ln(chl. a) exhibited a positive correlation with the TP concentration, negative correlations with the sunshine hours and wind speed during the dry season, and positive correlations with the TN and TP concentrations during the rainy season. Furthermore, TP was the most influential factor affecting cyanobacterial bloom dynamics throughout the entire period and during the dry season, and TN and TP were the most important factors during the rainy season, as determined by relative importance analysis. The results of this study based on interannual analysis demonstrated that both meteorological factors and nutrient levels have important roles in controlling cyanobacterial bloom dynamics. The relative importance of these factors may change according to precipitation patterns. Thus, climate change regulation and eutrophication management should be considered in strategies for bloom control. Decreasing the TP load should be prioritized throughout the entire period and during the dry season, and decreasing the TN and TP loads should be considered initially during the rainy season. In addition, further studies of more frequent and complete data acquired over a longer period of time should be conducted in the future.

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Section: Discussionmentioning

confidence: 48%

The relationships of meteorological factors and nutrient levels with phytoplankton biomass in a shallow eutrophic lake dominated by cyanobacteria, Lake Dianchi from 1991 to 2013

Zhou

Zhang

Lin

et al. 2016

Environ Sci Pollut Res

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“…Various direct and indirect responses of phytoplankton biomass to warming have been reported, including a lack of effect (Kosten et al ., ; Özen et al ., ), an increase (Mooij et al ., ; De Senerpont Domis et al ., ; Lewandowska et al ., ) or a decrease (Sommer & Lengfellner, ; Shurin et al ., ; George et al ., ). Warming has been observed to change phytoplankton cell physiological processes, community composition and trophic structure of the food web (Strecker et al ., ; Kratina et al ., ; Shurin et al ., ; Toseland et al ., ).…”

Section: Discussionmentioning

confidence: 97%

“…After the collapse of the bloom in the warm treatments, the phytoplankton bloom together with the chytrid prevalence persisted for a period of 2 weeks in the control treatments. Various direct and indirect responses of phytoplankton biomass to warming have been reported, including a lack of effect (Kosten et al, 2012;€ Ozen et al, 2013), an increase (Mooij et al, 2005;De Senerpont Domis et al, 2014;Lewandowska et al, 2014) or a decrease (Sommer & Lengfellner, 2008;Shurin et al, 2012;George et al, 2015). Warming has been observed to change phytoplankton cell physiological processes, community composition and trophic structure of the food web (Strecker et al, 2004;Kratina et al, 2012;Shurin et al, 2012;Toseland et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

Warming accelerates termination of a phytoplankton spring bloom by fungal parasites

Frenken

Velthuis

Domis

et al. 2015

Global Change Biology

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Climate change is expected to favour infectious diseases across ecosystems worldwide. In freshwater and marine environments, parasites play a crucial role in controlling plankton population dynamics. Infection of phytoplankton populations will cause a transfer of carbon and nutrients into parasites, which may change the type of food available for higher trophic levels. Some phytoplankton species are inedible to zooplankton, and the termination of their population by parasites may liberate otherwise unavailable carbon and nutrients. Phytoplankton spring blooms often consist of large diatoms inedible for zooplankton, but the zoospores of their fungal parasites may serve as a food source for this higher trophic level. Here, we investigated the impact of warming on the fungal infection of a natural phytoplankton spring bloom and followed the response of a zooplankton community. Experiments were performed in ca. 1000 L indoor mesocosms exposed to a controlled seasonal temperature cycle and a warm (+4 °C) treatment in the period from March to June 2014. The spring bloom was dominated by the diatom Synedra. At the peak of infection over 40% of the Synedra population was infected by a fungal parasite (i.e. a chytrid) in both treatments. Warming did not affect the onset of the Synedra bloom, but accelerated its termination. Peak population density of Synedra tended to be lower in the warm treatments. Furthermore, Synedra carbon: phosphorus stoichiometry increased during the bloom, particularly in the control treatments. This indicates enhanced phosphorus limitation in the control treatments, which may have constrained chytrid development. Timing of the rotifer Keratella advanced in the warm treatments and closely followed chytrid infections. The chytrids' zoospores may thus have served as an alternative food source to Keratella. Our study thus emphasizes the importance of incorporating not only nutrient limitation and grazing, but also parasitism in understanding the response of plankton communities towards global warming.

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“…Temperature and nutrients (e.g. nitrate, phosphate and silicate) are the main initiators of phytoplankton blooms, but low planktonic grazing activity compared to phytoplankton growth allows their expansion [14, 53, 54]. Some ciliates such as Lohmaniella oviformis and Mesodinium rubrum (= Myrionecta rubra ) are known to bloom in small-scale patches (13–170 m) and throughout the water column [24–26].…”

Section: Discussionmentioning

confidence: 99%

Patchiness of Ciliate Communities Sampled at Varying Spatial Scales along the New England Shelf

2016

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Although protists (microbial eukaryotes) provide an important link between bacteria and Metazoa in food webs, we do not yet have a clear understanding of the spatial scales on which protist diversity varies. Here, we use a combination of DNA fingerprinting (denaturant gradient gel electrophoresis or DGGE) and high-throughput sequencing (HTS) to assess the ciliate community in the class Spirotrichea at varying scales of 1–3 km sampled in three locations separated by at least 25 km—offshore, midshelf and inshore—along the New England shelf. Analyses of both abundant community (DGGE) and the total community (HTS) members reveal that: 1) ciliate communities are patchily distributed inshore (i.e. the middle station of a transect is distinct from its two neighboring stations), whereas communities are more homogeneous among samples within the midshelf and offshore stations; 2) a ciliate closely related to Pelagostrobilidium paraepacrum ‘blooms’ inshore and; 3) environmental factors may differentially impact the distributions of individual ciliates (i.e. OTUs) rather than the community as a whole as OTUs tend to show distinct biogeographies (e.g. some OTUs are restricted to the offshore locations, some to the surface, etc.). Together, these data show the complexity underlying the spatial distributions of marine protists, and suggest that biogeography may be a property of ciliate species rather than communities.

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The interactive roles of temperature, nutrients, and zooplankton grazing in controlling the winter-spring phytoplankton bloom in a temperate, coastal ecosystem, Long Island Sound

Cited by 45 publications

References 47 publications

The relationships of meteorological factors and nutrient levels with phytoplankton biomass in a shallow eutrophic lake dominated by cyanobacteria, Lake Dianchi from 1991 to 2013

The relationships of meteorological factors and nutrient levels with phytoplankton biomass in a shallow eutrophic lake dominated by cyanobacteria, Lake Dianchi from 1991 to 2013

Warming accelerates termination of a phytoplankton spring bloom by fungal parasites

Patchiness of Ciliate Communities Sampled at Varying Spatial Scales along the New England Shelf

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